DM74LS574N 查看數據表（PDF） - Fairchild Semiconductor
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DM74LS574N Datasheet PDF : 6 Pages
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Absolute Maximum Ratings(Note 1)
Supply Voltage
7V
Input Voltage
7V
Operating Free Air Temperature Range 0°C to +70°C
Storage Temperature Range
−65°C to +150°C
Note 1: The “Absolute Maximum Ratings” are those values beyond which
the safety of the device cannot be guaranteed. The device should not be
operated at these limits. The parametric values defined in the Electrical
Characteristics tables are not guaranteed at the absolute maximum ratings.
The “Recommended Operating Conditions” table will define the conditions
for actual device operation.
Recommended Operating Conditions
Symbol
VCC
VIH
VIL
IOH
IOL
TA
tS (H)
tS (L)
tH (H)
tH (L)
tW (H)
tW (L)
Parameter
Supply Voltage
HIGH Level Input Voltage
LOW Level Input Voltage
HIGH Level Output Current
LOW Level Output Current
Free Air Operating Temperature
Setup Time HIGH or LOW
Dn to CP
Hold Time HIGH or LOW
Dn to CP
CP Pulse Width
HIGH or LOW
Min
4.75
2
Nom
5
0
20
20
0
0
15
15
Electrical Characteristics
over recommended operating free air temperature range (unless otherwise noted)
Symbol
Parameter
Conditions
Min
VI
Input Clamp Voltage
VCC = Min, II = −18 mA
VOH
HIGH Level
Output Voltage
VCC = Min, IOH = Max,
2.4
VIL = Max, VIH = Min
VOL
LOW Level
VCC = Min, IOL = Max,
Output Voltage
VIL = Max, VIH = Min
IOL = 12 mA, VCC = Min
II
Input Current @ Max Input Voltage
VCC = Max, VI = 7V
IIH
HIGH Level Input Current
VCC = Max, VI = 2.7V
IIL
LOW Level Input Current
VCC = Max, VI = 0.4V
IOZH
OFF-State Output Current with
VCC = Max, VO = 2.4V
HIGH Level Output Voltage Applied
VIH = Min, VIL = Max
IOZL
OFF-State Output Current with
VCC = Max, VO = 0.4V
LOW Level Output Voltage Applied
VIH = Min, VIL = Max
IOS
Short Circuit Output Current (Note 3) VCC = Max
−30
ICC
Supply Current
VCC = Max (Note 4)
Note 2: All typicals are at VCC = 5V, TA = 25°C.
Note 3: Not more than one output should be shorted at a time, and the duration should not exceed one second.
Note 4: ICC is measured with the DATA inputs grounded and the OUTPUT CONTROLS at 4.5V.
Max
Units
5.25
V
V
0.8
V
−2.6
mA
24
mA
70
°C
ns
ns
ns
Typ
Max
(Note 2)
−1.5
3.3
0.35
0.5
0.25
0.4
0.1
20
−400
20
−20
−130
45
Units
V
V
V
mA
µA
µA
µA
µA
mA
mA
3
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